/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
 *  SRVNSOperationProtocol.h - iPhoneSRV console for Surveyor SRV-1 and SVS 
 *
 *  Created by Nick Kitchener.  Copyright (C) 2009  Surveyor Corporation 
 *            and Nick Kitchener.  All rights reserved.
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details (www.gnu.org/licenses)
 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */

// This exists to clean up the appearance of SRVNSOperation
// operations here must only be used by SRVNSOperation derived classes.

@protocol SRVNSOperationProtocol

@property(assign) BOOL inputStreamOpened;
@property(assign) BOOL outputStreamOpened;
@property(assign) BOOL inputStreamError;
@property(assign) BOOL outputStreamError;

// of interest for sub-class implementations
-(id)init;
-(void)dealloc;
-(void)invokeCallback;

// of interest if you subclass and replace main.
-(void)setupConnectionClient;
-(void)teardownConnectionClient;

// CF Stream operations
static void inputStreamCallBack (CFReadStreamRef stream, CFStreamEventType event, void *myPtr);
static void outputStreamCallBack (CFWriteStreamRef stream, CFStreamEventType event, void *myPtr);

// NSOperation protocol - you should not need to change these
-(BOOL)isConcurrent;
-(BOOL)isReady;
-(BOOL)isExecuting;
-(BOOL)isFinished;

-(void)start;
-(void)main;

@end
